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Q1) Write a SELECT statement that returns two columns: VendorName and PaymentSum, where PaymentSum is the sum of the PaymentTotal column. Group the result set by VendorName. Return only 10 rows, corresponding to the 10 vendors who've been paid the most.
All primary keys are underlined. All foreign keys have same name as primary key that they are referencing. Determine the names of all Tracks which are more than 10 minutes (600,000 ms) long.
Write down the SQL code in order to carrying out the following requests. Display all the data in each of the four tables. Do not display the foreign key columns.
Draw an Entity Relationship diagram for the system and Identify the table design for the database displaying all the fields/attributes. Ensure that all tables are in 3NF. You also need to identify the primary keys and foreign keys, where applicable..
creating database structure using SQL
What are the functional dependencies among the data represented in this first normal form relation?
Data Modeling and Normalization
However, the only way you can access values is through queries to the databases. In single query, you can specify value k to one of two databases.
Express given five loosely described problems carefully in { Instance, Question } form as utilized in "Computers and Intractability". Determine that a list of n numbers has no duplicates.
Explain how you will visually represent the data for the sales of the individual stores and for the time period shown. You want to show the change in sales for each store over time for the past three years.
Suppose a database has tables given below. Write the names and e-mail addresses for all customers who have had stove repair which cost more than $50.
Why do you believe that views by themselves are insufficient for protecting access by unauthorized users?
CAR (Serial-No, ModConsider the given relations for database which keeps track of auto sales in car dealership.
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